23 lines
354 B
C++
23 lines
354 B
C++
#include<cstdio>
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using namespace std;
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int answer(int a,int b,int x)
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{
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if(b==1) return 1;
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int ans=0;
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for(int i=x;i*b<=a;i++) ans+=answer(a-i,b-1,i);
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return ans;
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}
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int main()
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{
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int n,a,b;
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scanf("%d",&n);
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int ans[n];
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for(int i=0;i<n;i++)
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{
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scanf("%d%d",&a,&b);
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ans[i]=answer(a,b,0);
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}
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for(int i=0;i<n;i++) printf("%d\n",ans[i]);
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return 0;
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}
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